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2007-06-07[POWERPC] spufs scheduler: Fix wakeup racesChristoph Hellwig
Fix the race between checking for contexts on the runqueue and actually waking them in spu_deactive and spu_yield. The guts of spu_reschedule are split into a new helper called grab_runnable_context which shows if there is a runnable thread below a specified priority and if yes removes if from the runqueue and uses it. This function is used by the new __spu_deactivate hepler shared by preemption and spu_yield to grab a new context before deactivating a specified priority and if yes removes if from the runqueue and uses it. This function is used by the new __spu_deactivate hepler shared by preemption and spu_yield to grab a new context before deactivating the old one. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-07[POWERPC] spufs: Synchronize pte invalidation vs ps closeChristoph Hellwig
Make sure the mapping_lock also protects access to the various address_space pointers used for tearing down the ptes on a spu context switch. Because unmap_mapping_range can sleep we need to turn mapping_lock from a spinlock into a sleeping mutex. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-07[POWERPC] spufs: Free mm if spufs_fill_dir() failedSebastian Siewior
In case spufs_fill_dir() fails only put_spu_context() gets called for cleanup and the acquired mm_struct never gets freed. Signed-off-by: Sebastian Siewior <bigeasy@linux.vnet.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-07[POWERPC] spufs: Fix gang destroy leaksJeremy Kerr
Previously, closing a SPE gang that still has contexts would trigger a WARN_ON, and leak the allocated gang. This change fixes the problem by using the gang's reference counts to destroy the gang instead. The gangs will persist until their last reference (be it context or open file handle) is gone. Also, avoid using statements with side-effects in a WARN_ON(). Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-07[POWERPC] spufs: Hook up spufs_release_memChristoph Hellwig
Currently spufs_mem_release and the mem file doesn't have any release method hooked up, leading to leaks everytime is used. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-07[POWERPC] spufs: Refuse to load the module when not running on cellArnd Bergmann
As noticed by David Woodhouse, it's currently possible to mount spufs on any machine, which means that it actually will get mounted by fedora. This refuses to load the module on platforms that have no support for SPUs. Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-07[POWERPC] pasemi: Fix iommu + 64K PAGE_SIZE bugOlof Johansson
The powerpc iommu code was refactored by Linas back in the 2.6.20 time frame to map 4K pages from the generic code, but I had forgotten to go back and fix my platform driver before submitting it. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-06[MIPS] Fix warning by moving do_default_vi into CONFIG_CPU_MIPSR2_SRSAtsushi Nemoto
This fixes the warning: arch/mips/kernel/traps.c:931: warning: 'do_default_vi' defined but not used Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-06[MIPS] Fix some minor typoes in arch/mips/Kconfig.Robert P. J. Day
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-06[MIPS] Remove prototype for deleted function qemu_handle_intRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-06[MIPS] Fix some system calls with long long argumentsAtsushi Nemoto
* O32 fadvise64() pass long long arguments by register pairs. Add sys32 version for 64 bit kernel. * N32 readahead() can pass a long long argument by one register. No need to use sys32_readahead. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-06[MIPS] Make dma_map_sg handle sg elements which are longer than one pageThomas Bogendoerfer
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-06[MIPS] Drop __ARCH_WANT_SYS_FADVISE64Atsushi Nemoto
sys_fadvise64() is not used on MIPS. The libc can implement both posix_fadvise() and posix_fadvise64() using sys_fadvise64_64(). Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-06[MIPS] Fix VGA corruption on RM300CThomas Bogendoerfer
... by setting DRAM config to 2MB (SNI always used that size). This also fixes video dram size detection in cirrusfb. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-06[MIPS] RM300: Fix MMIO problems by marking the PCI INT ACK region busyThomas Bogendoerfer
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-06[MIPS] EMMA2RH: remove dead KGDB codeSergei Shtylyov
Get rid of the cross-arch KGDB specific code which shouldn't have been there in the first place... Signed-off-by: Sergey Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-06[MIPS] Remove duplicate fpu enable hazard code.Chris Dearman
Use common code from hazards.h instead. Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-06[MIPS] Atlas, Malta, SEAD: Remove scroll from interrupt handler.Ralf Baechle
Aside of being handy for debugging this has never been a particularly good idea but is now getting in the way of dyntick / tickless kernels and general cleanups. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-05[VIDEO] sunxvr500fb: Fix pseudo_palette array sizeAntonino Daplas
- the pseudo_palette is only 16 elements long. - the pseudo_palette has only 16 elements. Do not write if regno (the array index) is more than 15. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-05[VIDEO] sunxvr2500fb: Fix pseudo_palette array sizeAntonino Daplas
- the pseudo_palette is only 16 elements long. - the pseudo_palette has only 16 elements. Do not write if regno (the array index) is more than 15. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-05[ARM] pxa: fix pxa27x keyboard driverRussell King
CKEN macro definitions no longer contains the bit number; remove it from usages in the pxa27x keyboard driver. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-06-05[VIDEO] ffb: The pseudo_palette is only 16 elements longAntonino Daplas
The pseudo_palette is only 16 elements long. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-05[ARM] Fix 4417/1: Serial: Fix AMBA drivers lockingRussell King
2389b272168ceec056ca1d8a870a97fa9c26e11a contains a merge bug; fix it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-06-04[VIDEO]: Fix section mismatch warning in promcon.Sam Ravnborg
Fix the following warnings in promcon: WARNING: o-sparc64/drivers/video/console/built-in.o(.text+0x480): Section mismatch: reference to .init.data:promfont_unitable (between 'promcon_init_unimap' and 'promcon_init') WARNING: o-sparc64/drivers/video/console/built-in.o(.text+0x488): Section mismatch: reference to .init.data:promfont_unitable (between 'promcon_init_unimap' and 'promcon_init') WARNING: o-sparc64/drivers/video/console/built-in.o(.text+0x48c): Section mismatch: reference to .init.data:promfont_unicount (between 'promcon_init_unimap' and 'promcon_init') WARNING: o-sparc64/drivers/video/console/built-in.o(.text+0x490): Section mismatch: reference to .init.data:promfont_unicount (between 'promcon_init_unimap' and 'promcon_init') The warnings happens because the function: promcon_init_unimap() references promfont_unitable and promfont_unicount which are marked __initdata by the conmakehash command in the drivers/video/console/Makefile Fix the warning by removing the __initdata marker on the two variables. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[ATA]: Back out bogus (SPARC64 && !PCI) Kconfig depends.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Fill in gaps in non-PCI dma_*() NOP implementation.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Fix {mc,smt}_capable().David S. Miller
It's not just sun4v hypervisor platforms that should return true for this, sun4u with UltraSPARC-IV should return true too. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Make core and sibling groups equal on UltraSPARC-IV.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Proper multi-core scheduling support.David S. Miller
The scheduling domain hierarchy is: all cpus --> cpus that share an instruction cache --> cpus that share an integer execution unit Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Provide mmu statistics via sysfs.David Miller
If the system supports hypervisor based statistics, allow them to be fetched, enabled, and disabled via sysfs. Enable and disable via the boolean: /sys/devices/systems/cpu/cpuN/mmustat_enable Statistic values are provided under: /sys/devices/systems/cpu/cpuN/mmu_status/ Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Fix service channel hypervisor function names.David Miller
sed 's/scv/svc/' Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Export basic cpu properties via sysfs.David S. Miller
Cache sizes, udelay_val, and clock_tick. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Move topology init code into new file, sysfs.cDavid S. Miller
Also, use per-cpu data for struct cpu. Calling kmalloc for each cpu in topology_init() is just plain clumsy. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04Linux 2.6.22-rc4Linus Torvalds
2007-06-04Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: [JFFS2] Fix obsoletion of metadata nodes in jffs2_add_tn_to_tree() [MTD] Fix error checking after get_mtd_device() in get_sb_mtd functions [JFFS2] Fix buffer length calculations in jffs2_get_inode_nodes() [JFFS2] Fix potential memory leak of dead xattrs on unmount. [JFFS2] Fix BUG() caused by failing to discard xattrs on deleted files. [MTD] generalise the handling of MTD-specific superblocks [MTD] [MAPS] don't force uclinux mtd map to be root dev
2007-06-04libata: always use polling SETXFERTejun Heo
Several people have reported LITE-ON LTR-48246S detection failed because SETXFER fails. It seems the device raises IRQ too early after SETXFER. This is controller independent. The same problem has been reported for different controllers. So, now we have pata_via where the controller raises IRQ before it's ready after SETXFER and a device which does similar thing. This patch makes libata always execute SETXFER via polling. As this only happens during EH, performance impact is nil. Setting ATA_TFLAG_POLLING is also moved from issue hot path to ata_dev_set_xfermode() - the only place where SETXFER can be issued. Note that ATA_TFLAG_POLLING applies only to drivers which implement SFF TF interface and use libata HSM. More advanced controllers ignore the flag. This doesn't matter for this fix as SFF TF controllers are the problematic ones. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-06-04Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] JAZZ ESP and SUN ESP need SPI_ATTRS [SCSI] atari_NCR5380: update_timeout removal [SCSI] aacraid: fix shutdown handler to also disable interrupts. [SCSI] qla2xxx: fix timeout in qla2x00_down_timeout [SCSI] fix CONFIG_SCSI_WAIT_SCAN=m
2007-06-04Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: reduce raciness when input handlers disconnect Input: ucb1x00 - do not access input_dev->private directly Input: logips2pp - fix typo in Kconfig Input: db9 - do not ignore dev2 module parameter
2007-06-04Merge branch 'master' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [ICMP]: Fix icmp_errors_use_inbound_ifaddr sysctl [IPV4]: Fix "ipOutNoRoutes" counter error for TCP and UDP [NET] gso: Fix GSO feature mask in sk_setup_caps [TCP]: Fix GSO ignorance of pkts_acked arg (cong.cntrl modules) [NET]: Fix comparisons of unsigned < 0. [NET]: Make net watchdog timers 1 sec jiffy aligned. [ATM]: Fix warning. [TCP]: Use default 32768-61000 outgoing port range in all cases. [AF_UNIX]: Fix datagram connect race causing an OOPS. [TG3]: Fix link problem on Dell's onboard 5906. [AF_UNIX]: Make socket locking much less confusing.
2007-06-04Merge branch 'master' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [ATA]: Don't allow to enable this for SPARC64 without PCI. [VIDEO]: XVR500 and XVR2500 require FB=y
2007-06-04vanishing ioctl handler debuggingAndrew Morton
We've had several reoprts of the CPU jumping to 0x00000000 is do_ioctl(). I assume that there's a race and someone is zeroing out the ioctl handler while this CPU waits for the lock_kernel(). The patch adds code to detect this, then emits stuff which will hopefuly lead us to the culprit. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-04mtrr atomicity fixAndrew Morton
Rafael gets this on an SMP box with kernel preemption enabled, during hibernation and restore (100% of the time): Enabling non-boot CPUs ... BUG: using smp_processor_id() in preemptible [00000001] code: bash/4514 caller is mtrr_save_state+0x9/0x40 Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-04SPI dynamic busid generation bugfixDavid Brownell
Fix SPI dynamic bus ID assignment to start at 2^15-1 rather than a negative number. Valid bus ids are supposed to be positive, and are (now) stored in an 's16' value. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-04[SCSI] JAZZ ESP and SUN ESP need SPI_ATTRSDavid S. Miller
Reported by Meelis Roos. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-04[SCSI] atari_NCR5380: update_timeout removalMichael Schmitz
Atari SCSI driver fixes: remove update_timeout kludge Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-03Input: reduce raciness when input handlers disconnectDmitry Torokhov
There is a race between input handler's release() and disconnect() methods: when input handler disconnects it wakes up all regular users and then process to walk user list to wake up async. users. While disconnect() walks the list release() removes elements of the same list causing oopses. While this is not a substibute for proper locking we can reduce odds of getting an oops if we wake up normal readers after walking the list. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-03Input: ucb1x00 - do not access input_dev->private directlyDmitry Torokhov
Use input_get_drvdata() and input_set_drvdata() helpers to do that. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Acked-by: Pavel Machek <pavel@ucw.cz>
2007-06-04sh: Fix se73180 platform device registration.Paul Mundt
Copy and paste error from se7343, fix it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-04sh: ioremap() through PMB needs asm/mmu.h.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-04sh: voyagergx: Fix build warnings.Paul Mundt
pr_debug() was using a %x on an unsigned long, which was making the build a bit noisy. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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